Gustavus w



G. W. 00011. FIRE EXTINGUISHER.

Patented June 21,1898.

m: imnms PETERS ca. Pnovmumuu WASHINGTON, u. c.

A Eiiitfiiii I I i (No Model.)

witness a. fjmzazm acid or alkaline solution.

UNITED STATES PATENT OFFICE.

GUSTAVUS' W. COON, OF HERNDON, VIRGINIA, ASSIGNOR TO HENRY P. HOLDEN, OF WASHINGTON, DISTRICT OF COLUMBIA.

FlRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 605,857, dated June 21, 1898.

Application filed September 1'7, 1897. Serial No. 651,984. (No model.)

T0 at whom'jt may concern.-

Be it known that I, GUsrAvUs W. CooN, a citizen of the United States, residing at Herndon, in the county of Fairfax and State of Virginia, have invented certain new and useful Improvements in Fire-Extinguishers and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My inventionrelates to chemical fire-extinguishers; and it consists in the novel features hereinafter described.

Figure 1 is an elevation in section of my fire-extinguisher,showin g the normal position of the acid-bottle. Fig. 2 is an elevation, partly in section, of the same when reversed, showing the position of the acid-bottle when -the apparatus is in operation; and Fig. 3 is a plan view of the bottom of the generatingchamber, taken on the line w w of Fig. 1.

In the several figures similar letters indicate similar parts of the apparatus.

T is the ordinary fire-extinguisher tank for holding the alkaline solution and is'made of any suitable metal.

S is a screw-cap for covering neck N of the tank, and through it the tank is charged with the solution and acid-bottle B is inserted. Bottle B, made of any suitable material, has an opening in its top for introducing the acid solution, which is covered by screw-cap 8. Bottle B has a flaring top I), which is adapt ed to fit accurately into a corresponding opening 0 in plug p. Plug 19 rests on flange f; projecting inwardly from the lower part of the neck of the tank, and it is covered by retaining-disk d, securely attached to neck N. Plug 19 is made of a composition adapted to resist the corroding effect of the acid fumes and fits snugly against the neck of the tank, flange f, and the acid-bottle, so as to prevent the passage around it of the vapors of the Around the face of bevel b of the acid-bottle and opening into groove 9 is a series of discharge-vents h, which are of sufficient number and size to effect the discharge of the acid solution in proper quantity when the bottle is turned upside down. When the acid-bottle is in its normal position or seat, vents h are covered by plug 19, and groove 9 permits a sufficient circulation of any acid vapor to prevent its choking up the vents. Between screw-cap S and the top of acid-bottle B and plug 19 is chamber 0, which I term the generatingchamberj, whence issues the hose-pipe P, and into thischamber the acid-bottle falls when the fire extinguisher is reversed, being steadied and guided by wingsw, suitably disposed around it, until it is checked by the impingement of screw-cap .9 against screwcap S. A passage-way 0 forthe alkaline solution is thus created, and it pours freely into chamber 0, where it meets and mingles with the acid descending from vents h. The expulsive gas is thereby generated and the fire-extinguishing fluid is ready to be discharged through hose-pipe PI When the top of the extinguisher is turned up again, the acid-bottle gravitates into its seat, and the generation of gas ceases.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is r r 1. In a fire-extinguisher, an alkali-tank in combination with an acid-bottle adapted to rest in a seat in the upper'part of the alkalit-ank when the tank is inits normal position and to gravitate from the seat when the tank is turned upside down, said bottle having discharge-vents in its side so arranged as to be automatically closed when the bottle is in the seat, substantially as described."

2. The alkali-tank, having a chamber at its top provided at the side with a distributing hose-pipe and at the bottom with a vaportight partition having a beveled opening as a seat for the acid-bottle, in combination with an acid-bottle adapted to fit snugly into and rest in said seat when the tank is in its normal position and to gravitate from said seat when the tank is turned upside down, said bottle having discharge-vents around that part of it which rests against said seat and being provided with guides to direct it in moving into and out of said seat and with a stop to limit its outward movement, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses. 7

GUSTAVUS w. coon.

Witnesses:

EWELL A. DICK, O. B. MILLIGAN. 

